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<html>
<head>
<title>
NETCDF - Reading and Writing NETCDF Files
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
NETCDF <br> Reading and Writing NETCDF Files
</h1>
<hr>
<p>
<b>NETCDF</b>
is a directory of C++ programs which
illustrate the use of the NETCDF library and file format.
</p>
<p>
NETCDF (Network Common Data Form) is a set of software libraries
and machine-independent data formats that support the creation,
access, and sharing of array-oriented scientific data.
</p>
<p>
For some reason, the C++ version of the NETCDF user guide does not
include any examples of programs whatsoever. One has to infer what
to do based solely on the description of the classes. The example
programs in this directory are supplied by the NETCDF implementors,
and must serve as partial, though scantily documented, substitutes
for the missing information in the user guide.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this web page
are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>NETCDF</b> is available in
<a href = "../../c_src/netcdf/netcdf.html">a C version</a> and
<a href = "../../cpp_src/netcdf/netcdf.html">a C++ version</a> and
<a href = "../../f77_src/netcdf/netcdf.html">a FORTRAN77 version</a> and
<a href = "../../f_src/netcdf/netcdf.html">a FORTRAN90 version</a> and
<a href = "../../m_src/netcdf/netcdf.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Programs:
</h3>
<p>
<a href = "../../data/cdl/cdl.html">
CDL</a>,
a data directory which
contains examples of CDL files,
a text version of NETCDF files created by the NCDUMP program;
</p>
<p>
<a href = "../../datasets/gfd2/gfd2.html">
GFD2</a>,
a dataset directory which
contains geophysical data, stored in NetCDF format.
</p>
<p>
<a href = "../../m_src/gfd2/gfd2.html">
GFD2</a>,
MATLAB programs which
simulate geophysical fluid dynamics.
</p>
<p>
<a href = "../../data/netcdf/netcdf.html">
NETCDF</a>,
a data directory which
contains examples of NETCDF files,
a format for the interchange of scientific data.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Russ Rew, Glenn Davis, Steve Emmerson, Harvey Davies, Ed Hartne,<br>
The NetCDF User's Guide,<br>
Unidata Program Center, March 2009.
</li>
<li>
Russ Rew,<br>
The NetCDF C++ Interface Guide,<br>
Unidata Program Center, August 2008.
</li>
</ol>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<b>SIMPLE_XY_WR</b> writes data to a NETCDF file.
The data is a simple two-dimensional array.
<ul>
<li>
<a href = "simple_xy_wr.cpp">simple_xy_wr.cpp</a>,
the program;
</li>
<li>
<a href = "simple_xy_wr.sh">simple_xy_wr.sh</a>, commands to
compile, link and run the sample calling program;
</li>
<li>
<a href = "simple_xy_wr_output.txt">simple_xy_wr_output.txt</a>,
the output file.
</li>
<li>
<a href = "simple_xy.nc">simple_xy.nc</a>,
the NETCDF file created by the program.
</li>
<li>
<a href = "../../data/cdl/simple_xy.cdl">simple_xy.cdl</a>,
the CDL text file version of the NETCDF file.
</li>
</ul>
</p>
<p>
<b>SIMPLE_XY_RD</b> reads data from a NETCDF file.
<ul>
<li>
<a href = "simple_xy.nc">simple_xy.nc</a>,
the NETCDF file to be read.
</li>
<li>
<a href = "simple_xy_rd.cpp">simple_xy_rd.cpp</a>,
the program;
</li>
<li>
<a href = "simple_xy_rd.sh">simple_xy_rd.sh</a>, commands to
compile, link and run the sample calling program;
</li>
<li>
<a href = "simple_xy_rd_output.txt">simple_xy_rd_output.txt</a>,
the output file.
</li>
</ul>
</p>
<p>
<b>SFC_PRES_TEMP_WR</b> writes data to a NETCDF file.
The data will include units attributes and coordinate dimensions.
<ul>
<li>
<a href = "sfc_pres_temp_wr.cpp">sfc_pres_temp_wr.cpp</a>,
the program;
</li>
<li>
<a href = "sfc_pres_temp_wr.sh">sfc_pres_temp_wr.sh</a>, commands to
compile, link and run the sample calling program;
</li>
<li>
<a href = "sfc_pres_temp_wr_output.txt">sfc_pres_temp_wr_output.txt</a>,
the output file.
</li>
<li>
<a href = "sfc_pres_temp.nc">sfc_pres_temp.nc</a>,
the NETCDF file created by the program.
</li>
<li>
<a href = "../../data/cdl/sfc_pres_temp.cdl">sfc_pres_temp.cdl</a>,
the CDL text file version of the NETCDF file.
</li>
</ul>
</p>
<p>
<b>SFC_PRES_TEMP_RD</b> reads data from a NETCDF file.
<ul>
<li>
<a href = "sfc_pres_temp.nc">sfc_pres_temp.nc</a>,
the NETCDF file to be read.
</li>
<li>
<a href = "sfc_pres_temp_rd.cpp">sfc_pres_temp_rd.cpp</a>,
the program;
</li>
<li>
<a href = "sfc_pres_temp_rd.sh">sfc_pres_temp_rd.sh</a>, commands to
compile, link and run the sample calling program;
</li>
<li>
<a href = "sfc_pres_temp_rd_output.txt">sfc_pres_temp_rd_output.txt</a>,
the output file.
</li>
</ul>
</p>
<p>
<b>PRES_TEMP_4D_WR</b> writes data to a NETCDF file.
The data will be four-dimensional and use a record dimension.
<ul>
<li>
<a href = "pres_temp_4D_wr.cpp">pres_temp_4D_wr.cpp</a>,
the program;
</li>
<li>
<a href = "pres_temp_4D_wr.sh">pres_temp_4D_wr.sh</a>, commands to
compile, link and run the sample calling program;
</li>
<li>
<a href = "pres_temp_4D_wr_output.txt">pres_temp_4D_wr_output.txt</a>,
the output file.
</li>
<li>
<a href = "pres_temp_4D.nc">pres_temp_4D.nc</a>,
the NETCDF file created by the program.
</li>
<li>
<a href = "../../data/cdl/pres_temp_4D.cdl">pres_temp_4D.cdl</a>,
the CDL text file version of the NETCDF file.
</li>
</ul>
</p>
<p>
<b>PRES_TEMP_4D_RD</b> reads data from a NETCDF file.
<ul>
<li>
<a href = "pres_temp_4D.nc">pres_temp_4D.nc</a>,
the NETCDF file to be read.
</li>
<li>
<a href = "pres_temp_4D_rd.cpp">pres_temp_4D_rd.cpp</a>,
the program;
</li>
<li>
<a href = "pres_temp_4D_rd.sh">pres_temp_4D_rd.sh</a>, commands to
compile, link and run the sample calling program;
</li>
<li>
<a href = "pres_temp_4D_rd_output.txt">pres_temp_4D_rd_output.txt</a>,
the output file.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source codes</a>.
</p>
<hr>
<i>
Last revised on 02 December 2009.
</i>
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